EP 3323227 A1 20180523 - RESTORATION METHOD FOR AN MPLS RING NETWORK
Title (en)
RESTORATION METHOD FOR AN MPLS RING NETWORK
Title (de)
VERFAHREN ZUR WIEDERHERSTELLUNG EINES MPLS-RINGNETZWERKS
Title (fr)
PROCÉDÉ DE RESTAURATION POUR UN RÉSEAU EN ANNEAU MPLS
Publication
Application
Priority
EP 2015066334 W 20150716
Abstract (en)
[origin: WO2017008862A1] According to the present invention, there is provided a method for restoring a MultiProtocol Label Switching (MPLS) ring network in the event of a network link failure. The MPLS ring network comprises a path for traffic around the ring comprising a plurality of sequential Label Switched Paths (LSPs). The method comprises, at a network node in the MPLS ring network: detecting a failure along a network link traversed by a first LSP having an end point at the network node; in response to the detecting, encapsulating an Ethernet Ring Protocol (ERP) restoration message in a restoration pseudowire; and transmitting the restoration pseudowire within a second LSP over a subsequent network link. The method also comprises, at a network node in the MPLS ring network: receiving a first LSP comprising a pseudowire; detecting that the pseudowire is a restoration pseudowire comprising an Ethernet Ring Protocol (ERP) restoration message; and in response to the detecting, processing the ERP restoration message. There is also provided a network node for an MPLS ring network, and an MPLS ring network.
IPC 8 full level
H04L 45/28 (2022.01); H04L 45/50 (2022.01)
CPC (source: EP US)
H04L 12/42 (2013.01 - US); H04L 12/437 (2013.01 - EP US); H04L 12/4637 (2013.01 - EP US); H04L 45/28 (2013.01 - EP US); H04L 45/50 (2013.01 - EP US); H04L 45/68 (2013.01 - EP US); H04L 2012/421 (2013.01 - EP US)
Citation (search report)
See references of WO 2017008862A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017008862 A1 20170119; EP 3323227 A1 20180523; EP 3323227 B1 20200603; US 10110475 B2 20181023; US 2017155575 A1 20170601
DOCDB simple family (application)
EP 2015066334 W 20150716; EP 15736305 A 20150716; US 201514775703 A 20150716